Amp-what.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The manifest-based application cache feature is obsolete. Consider using service workers instead.
Consider avoiding viewport values that prevent users from resizing documents.
Errors:
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Attribute “property” not allowed on element “meta” at this point.
Attribute “itemprop” not allowed on element “meta” at this point.
Bad value “/unicode/search/>” for attribute “href” on element “a”: Illegal character in path segment: “>” is not allowed.
Bad value “/unicode/search/>>” for attribute “href” on element “a”: Illegal character in path segment: “>” is not allowed.
Attribute “alt” not allowed on element “a” at this point.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
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